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Taking into account the fluoride molten salt corrosion-resistant material systems discussed earlier, the materials that exhibit the best corrosion resistance under different operating conditions can be clearly classified into categories. Among metal structural materials, Hastelloy N (with the Chinese designation NS3304) has the strongest overall corrosion resistance. Verification data shows that in an environment of molten fluoride salts at 704°C, its annual corrosion rate is less than 0.025 millimeters, which is less than 1/3 of the diameter of a human hair. Core advantage: It is the only metal structural material in the world that has been tested through decades of operation of molten salt reactors; it can withstand the severe conditions of high-temperature corrosion and neutron irradiation. It is included in the ASME nuclear-grade pressure vessel certification system, making it the most reliable metal option for industrial applications. II. Verification data on MoC (molybdenum carbide), which possesses the highest corrosion resistance among ceramic materials capable of withstanding extreme temperatures: In an FLiNaK molten salt under Ar gas protection at 850°C, the corrosion rate after 100 hours of immersion was only 0.26 μm/100h, which is significantly lower than that of other tested carbide and oxide ceramics. Core advantage: In ultra-high-temperature fluoride environments of 850°C and above, its corrosion resistance far exceeds that of all metal alloys; it is the ceramic material with the strongest resistance to fluoride corrosion based on currently available experimental data.